Cita APA (7a ed.)
Arndt, R. Saudi Aramco World: November - December 2009, vol. 60, no. 6 : A Trail of Promise. Aramco Services.
Cita estilo Chicago (17a ed.)
Arndt, Robert. Saudi Aramco World: November - December 2009, Vol. 60, No. 6 : A Trail of Promise. Houston, EUA: Aramco Services.
Cita MLA (9a ed.)
Arndt, Robert. Saudi Aramco World: November - December 2009, Vol. 60, No. 6 : A Trail of Promise. Aramco Services.
Precaución: Estas citas no son 100% exactas.